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LFH10A series Temperature and Humidity Transmitter is a transmitter specially designed for industrial applications. It has three installation methods: wall-mounted, duct type, and split. The three output modes of current, voltage, and RS485 are optional. The on-site adaptability is strong, and the terminal design is suitable for rapid installation. It can be widely used in computer rooms, HVAC, buildings, warehousing and other places where temperature and humidity measurement is required.
Using high-precision sensors and master control, it has good long-term stability and anti-interference ability.
The shell design is compact and beautiful, and the LCD backlight is used for dual display of temperature and humidity, which is convenient for use.
The power supply and output have overvoltage and reverse connection protection functions, and have a high protection level up to IP65
The temperature range can be changed by dip switch.If output is RS485, Device Address and Baud Rate can be revised by dip switch as well.
1) Relative humidity
Sensor | Digital type |
Measuring Range | 0%~100%RH |
Output | Output: RS485/Modbus, 0~10VDC, 4~20mA optional |
Accuracy | ±3%@20℃ & 20~80%RH |
Response time | ≤10s(20℃, slow flow air) |
2) Temperature
sensor | Digital type or thermal resistance, see Order Ref No. | |
Measuring Range | 0~50℃, -20~60℃ etc | |
Output | 4~20mA, 0~10VDC, RS485/Modbus Optional | |
Thermal Resistance | See Order Ref No.and Thermal Resistance Indexing Table | |
Accuracy | Digital type: ±0.3℃@0~60℃ Thermal resistance: typical±0.2~0.4℃@25℃, see Order Ref No. | |
Power Supply | Voltage type/485 type: 15~35VDC/24VAC±20%(AC power supply requires isolated power supply) | Current type: 19.5~35VDC(RL=500Ω)/ 9.5~35VDC(RL=0Ω2) |
Output Load | ≤250Ω(Current type), ≥2KΩ(Voltage type) | |
Display | LCD display optional, with unit display and backlight(4~20mA without backlight) | |
Shell Material | ABS housing, PC probe and high polymer filter | |
Working Environment | -20~60℃, 5%-95%RH(Non-condensing) | |
Protection Grade | IP65 | |
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